Watched a physics lecture yesterday in which the teacher stated that a G field has energy, but an E filed (due to the Coulomb force does not). This does not compute. Both fields have potential energy, yes?
Pengwuino said:Yes, that doesn't make sense. Are you sure that's what they meant?
The energy of a gravitational field is associated with the force of attraction between masses, while the energy of an electric field is associated with the force of attraction or repulsion between charges.
This is because the energy of a gravitational field is proportional to the product of the masses and the distance between them, while the energy of an electric field is proportional to the product of the charges and the distance between them squared. This difference in the mathematical relationship results in the gravitational field having energy, while the electric field does not.
The energy of a gravitational field has a direct impact on the motion and behavior of objects within it. The greater the energy of the gravitational field, the stronger the force of attraction between objects and the faster they will accelerate towards each other.
At this time, there is no known way to harness the energy of a gravitational field for practical use. However, scientists continue to study and research ways to potentially utilize this energy in the future.
The energy of a gravitational field can be calculated using the formula E = -GmM/r, where G is the gravitational constant, m and M are the masses of the objects, and r is the distance between them. This formula is a simplified version and does not take into account other factors such as the shape and distribution of the masses.